5ADBEEF
Joined 3 years ago
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217
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Member since
Aug 4
Recent submissions
Comment · 1 year ago
I don’t think most have this experience. Zephyr is the future.
Comment · 1 year ago
Zephyr provides an open source implementation of all layers of the BLE stack. The radios of some devices are documented extensively, Nordic nRF5 devices are probably the best example.
The Bluetooth SIG requires that you qualify your device if you advertise that you use Bluetooth IP, similar to what is required for the cellular space. Do you have to do this if you’re just “Bluetooth compatible?” Maybe not. Whatever the case you have to conduct FCC part 15C testing (intentional radiator).
Comment · 1 year ago
the average defense job is the exact opposite of fulfilling and meaningful
Comment · 2 years ago
Be aware, per erratum 9, that you’ll need to include external pull-downs instead of using the internal ones
Comment · 2 years ago
Anybody notice that the example for their shell is using the Zephyr shell subsystem? Very cool that it's using Zephyr!
Comment · 2 years ago
anybody doing new BLE products has a 50/50 shot of using Zephyr in current year. I think the real benefit of Zephyr is that the wheel has already been invented, no need to do it yourself
Comment · 2 years ago
the pi pico is 100% supported in Zephyr. https://github.com/zephyrproject-rtos/zephyr/tree/main/board... Did the author not check the docs? https://docs.zephyrproject.org/latest/boards/raspberrypi/rpi...
Additionally, you aren't intended (for many situations) to use a single "main" Zephyr install, but to include what external modules you need in your project's west.yml. If you have a number of projects sharing the same Zephyr install that's a separate discussion but installing every possible toolchain/HAL is not the only way to do things.
Comment · 2 years ago
RF dongles almost always are Nordic Semiconductor parts and they use their proprietary (but open) protocol called Enhanced Shockburst. The minimum latency of BLE is 7.5ms (fastest connection interval in the spec) while ESB can be in the 100s of microseconds. Not sure about power savings but latency is better.
Comment · 2 years ago
Comment · 2 years ago
Zephyr would also be well suited for something like this. Anyone aware of any projects that do something similar with Zephyr?
Comment · 2 years ago
I am not certain that this provides a lot of benefit. Worth discussion. Feels like most engineers just copy the application circuit nowadays though.
https://www.signalintegrityjournal.com/articles/1589-the-myt...
Comment · 2 years ago
This is what Wirepas is doing with their mesh network. They have a DECT version coming soon
Comment · 2 years ago
Not an unauthenticated mesh. This will be up user implementation iirc